Multiple Choice
What is the best explanation of a child having the physical phenotype of Down syndrome but having a totally normal karyotype on chromosomal analysis of blood?
A) Mosaicism of trisomy 21 in various tissues
B) Inaccurate technique for chromosomal analysis
C) Uniparental disomy for somatic cells but not for germ cells
D) Selective chromosome loss during meiosis II of gametogenesis
Correct Answer:
Verified
Correct Answer:
Verified
Q10: Which syndrome or condition represents monosomy?<br>A)Cri du
Q11: Which reproductive consequence is possible for a
Q12: Why does a person who has a
Q13: Which statement about partial deletions and duplications
Q14: What is the most likely explanation for
Q15: Why does an embryo with a balanced
Q16: Which chromosome is trisomic in Edward syndrome?<br>A)13<br>B)18<br>C)22<br>D)X
Q17: Which description is the best example of
Q18: What is the risk for a man
Q19: Which autosomal condition or syndrome commonly features